5/16" BSW Nut Hex BS916:1940 in EN1A mild steel. Slightly thicker hex than modern fasterners but with the same width.Full bearing, single chamfer.TPI: 185/16" BSW Nut Hex BS916:1940£0.95PriceFinish*SelectDiameter*SelectGrade*SelectQuantity*Add to CartDeliveryDelivery costs are based on the weight of your order UK Delivery: 3 to 5 business days International: 5 to 7 business days
